Fastboot service initialization fails when using Embroider and storeConfigInMeta is disabled

I've run across an issue where if you are using a 3.2.x series of `ember-cli-fastboot` with Embroider and the `storeConfigInMeta` configuration option enabled in your `ember-cli-build.js`, the initialization of the Fastboot service fails. This looks to be an timing or dependency issue between the initialization of `ember-fetch` and `ember-cli-fastboot`.

```
TypeError: Cannot read property 'method' of undefined
at Class.init (webpack:///./node_modules/ember-cli-fastboot/services/fastboot.js?:9:27)
at Class.superWrapper [as init] (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/utils/index.js:442:1)
at initialize (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/runtime/lib/system/core_object.js:88:1)
at Function.create (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/runtime/lib/system/core_object.js:604:1)
at Class.eval (webpack:///./node_modules/ember-cli-fastboot/services/fastboot.js?:105:26)
at /var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1918:1
at untrack (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@glimmer/validator.js:842:1)
at ComputedProperty.get (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1917:1)
at Class.getter [as request] (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1007:1)
at getPossibleMandatoryProxyValue (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1308:1)
at _getProp (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1373:1)
at get (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/metal/index.js:1359:1)
at Class.get (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/-internals/runtime/lib/mixins/observable.js:116:1)
at Object.patchFetchForRelativeURLs [as initialize] (webpack:///./instance-initializers/setup-fetch.js?:13:140)
at /var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/engine/index.js:136:1
at Vertices.each (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/dag-map.js:231:1)
at Vertices.walk (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/dag-map.js:145:1)
at DAG.each (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/dag-map.js:75:1)
at DAG.topsort (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/dag-map.js:83:1)
at App._runInitializer (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/engine/index.js:151:1)
at App.runInstanceInitializers (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/engine/index.js:134:1)
at Class._bootSync (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/application/instance.js:111:1)
at App.didBecomeReady (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/@ember/application/lib/application.js:706:1)
at invokeWithOnError (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/backburner.js:347:1)
at Queue.flush (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/backburner.js:229:1)
at DeferredActionQueues.flush (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/backburner.js:426:1)
at Backburner._end (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/backburner.js:960:1)
at Backburner._boundAutorunEnd (/var/folders/_b/525y2kfj6sg6l_gbcnf29qsm0000gp/T/broccoli-24537nrIycI2Y4tbE/out-239-packager_runner_embroider_webpack/assets/backburner.js:629:1)
at runMicrotasks ()
at processTicksAndRejections (internal/process/task_queues.js:93:5)
```

If you are using a 3.2.x series of Fastboot and `storeConfigInMeta` this works fine, but once Embroider comes in to the mix something goes wrong.

This was originally raised in the [#fastboot discord channel](https://discord.com/channels/480462759797063690/485861149821239298/909962808744083527) and this issue is where I _think_ the root cause lives? Could be wrong though since I'm not sure which of Embroider, Fastboot, or Ember Fetch are doing something funky.

A minimal reproduction can be found on this [forked branch of ember-realworld-fasboot](https://github.com/rahulk94/ember-realworld-fastboot/tree/spike/demo-store-config-in-meta-breaks-fastboot) which disables `storeConfigInMeta` in the first commit which starts causing issues, and then removes `ember-data-storefront` to rule it out as the cause.

The workaround for this is to remove the `storeConfigInMeta` configuration override.